错误消息 "unable to cast object of type 'system.int32' to type 'system.string'" 表示在编程过程中,尝试将 System.Int32(整型)类型的对象直接转换为 System.String(字符串)类型。这是不允许的,因为这两种类型在 .NET 框架中是不兼容的。整型(int)是一个数值类型,而字符串(string)是一个文本类型,它们具...
报错信息:Unable to cast object of type 'System.Int32' to type 'System.String' 解决方案:其实就是在定义Model的时候的字段数据类型与数据库定义的数据类型不匹配,改成跟数据库的一样即可!
关键错误点Unable to cast object of type 'System.Int32' to type 'System.String'.提示是无法将“System.Int32”的对象强制转换为“System.String”。于是我就找了所有使用Int的地方,终于发现 //////ID///[Key][StringLength(20)][DatabaseGenerated(DatabaseGeneratedOption.Identity)]publicoverrideintID {...
'string.Split(params char[])' has some invalid arguments 'string' does not contain a definition for 'empty' 'System.Threading.ThreadAbortException' occurred in mscorlib.dll...what is the error?how to solve??? 'System.Web.UI.WebControls.Literal' does not allow child controls. 'The input...
Error: InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Int32 Error: The AdRotator AdRotator1 could not find the AdvertisementFile or the file is invalid. Error: The string 'False' is not a valid Boolean value. Error: Type Arraylist is not defined Error:...
[InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.String'.] System.Web.DynamicData.DynamicMetaTable.GetDisplayString(Object value) +138 ASP.app_shared_dynamicdatafields_foreignkey_ascx.GetDisplayStr...
Describe the bug, including details regarding any error messages, version, and platform. It looks like I'm able to cast ints/string: > import pyarrow as pa > n_legs = pa.array([2, 2, 4, 4, 5, 100]) > animals = pa.array(["Flamingo", "Parr...
And that, I got Exception Message: System.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Boolean'. uh.IsDel.HasValue?uh.IsDel.Value:false => ( CASE WHEN`uh`.`is_del`IS NOT NULLTHEN`uh`.`is_del`ELSE ...
Error: InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Int32 Error: The AdRotator AdRotator1 could not find the AdvertisementFile or the file is invalid. Error: The string 'False' is not a va...
关键错误点Unable to cast object of type 'System.Int32' to type 'System.String'.提示是无法将“System.Int32”的对象强制转换为“System.String”。于是我就找了所有使用Int的地方,终于发现 1///2///排序数字3///4//[MaxLength(10)]这个不能加,自己做的代码生成器添加的5publicInt32? SortId {get;...